Warning: Tuna May Be Bad for Your Health

By Ian Malcolm / January 28, 2020

The level of omega-6 fatty acids added to tuna could be harmful and lead to respiratory problems, researchers have warned.

An international panel of experts convened by Portland State University concluded Monday that eating tuna raises the risk of colon cancer. Experts not involved in the report said that the findings should give people more reason to "moderate" their intake of tuna. The panel's conclusions evoked strong responses, including resistance from the tuna industry and from some environmental groups calling for warning labels on tuna.


Researchers at Portland State University have concluded that tuna contains very high levels of the potentially dangerous omega-6 fatty acids. How dangerous is it? Eating tuna could be far worse for your heart health than eating donuts!

"In the United States, tuna has shown big gains in popularity, and this trend is expected to continue as consumption is projected to increase from 1.5 million tons in 2003 to 2.5 million tons by 2010" write the Portland State University researchers in an article published in the Journal of the National Cancer Institute.

According to a study published in the Journal of the National Cancer Institute, tuna may actually raise the risk of breast cancer. Other studies link tuna to lymphoid cancers and lung cancer.

Over the past 30 years, the FDA has received thousands of consumer complaints about tuna due mostly to neurological symptoms such as headaches, dizziness, memory loss, and, in rare cases, epileptic seizures. Many studies have shown tuna to be completely harmless, while others indicate that it might be responsible for a range of cancers. Until we know for sure, Portland State University recommends avoiding tuna.